ES2262453A1 - Endless tape for use in mountain range during cutting diamond stone, has link belt with geometry having diamond segments, where tape is made of highly resistant steel, and flexible zone of tape flattened for contact adapted with pulleys - Google Patents

Abstract

The tape has a link belt with a geometry having diamond segments, where the tape is made of highly resistant steel. A flexible zone of the tape is completely flattened for a contact adapted with pulleys.

Description

Endless band saw with segments of Diamond.

Mastery of the technique

It has application in the cutting industry of the stone.

Prior art

Band saws are widely known and its use is extended in different sectors such as cutting steel, aluminum, wood, etc. To achieve greater duration, they use bimetallic band saws, a flexible steel on the spine to ensure high fatigue life and a small area of steel Quick on cutting teeth. For certain applications, such as cutting of ceramic materials, composites, tiles, there are tapes in whose cutting area the metal is coated with a granulate of Diamond or also with tungsten carbide, without existing no type of flexible tape to which segments of Diamond.

Currently cutting large stone blocks It is done well by cutting machines by thread, disk or by looms. The looms are mainly used in the sheet metal cutting and consist of large steel strips with reciprocating movement, which use shot blasting as abrasive to help with the cut. The thread machines use as cutting element some equally spaced diamond beads strung on a steel cable, separated from each other by a section of rubber or plastic Disk cutting machines consist of a cutting disc that is usually a steel soul with inserts diamond in its contour as a cutting element. All these tools always have a large cutting thickness, twelve millimeters for large discs, eleven for diamond wires, etc. involving a high consumption of diamond, stone and power.

Explanation of the invention.

The present invention is configured by itself. as an obvious novelty for not finding any kind of cutting tool with these features in the market National or international.

As expressed in its own title, it refers to a novel metal tape with diamond segments, applicable to cutting large blocks obtained directly from quarry. He Preferred product to obtain with this tape are thicknesses of stone, since loom is used for sheet metal production, which They are very competitive.

The geometry of the flexible zone of the belt has been carefully studied to minimize the efforts of fatigue that appear during the work period of it. In the flexible steel zone of the saw appears a first part of the Loin continues, part that will pass over the drag pulleys and that will support the main tension, then there is a crenellated area with gorges and a small flat area where they are Diamond segments soldiers. The geometry of these throats It is essential for the correct operation of the tape, it is important that the throats are rounded to avoid stress concentrations and projections are in cantilever over the pulleys to allow the belt to adapt from the curved part of the loin (as it passes through the pulleys) to the rigid zone caused by the soldier of the diamond segments.

The diamond segments will be of short length, to reduce the tensions in the belt by the transition of the zone curve of the loin (when passing through the pulleys) and the straight area of the Diamond segments The welding of the segments must be done with strong means to avoid skipping segments before wear, preferably laser welding but silver welding is also possible.

The width of the diamond segments must be superior to that of the tape so that these are always the ones that produce the abrasion of the stone and be able to deepen indefinitely in the cut.

The passage of the tape must be variable to avoid resonance frequencies during the cut and also the throat between segments must be of sufficient size to accommodate the detritus of the stone when cut and prevent the tape from binding during the cut.

The tape must be cleaned with high water pressure or some other means, to prevent sludge from enter between the saw and the pulleys, causing a high wear.

Brief description of the content of the drawings

In the drawings a section is shown graphically of the endless belt, object of this property protection industrial.

In figure 1, three-dimensional view of a section of tape. This first figure shows a section of tape according to preferred embodiment described below, but without that this serves as a clause limiting the protection of present invention, since as described, the tape without end can be of a single material in which the form is made crenellated described, or it could also be bimetallic as it is described in the preferred embodiment.

The figure shows the areas described in the preferred embodiment:

TO.

A Flexible steel zone in which two parts differ:

\ circ

Rib loin area. Is a continuous zone to avoid stress concentration and subsequent fatigue breakage due to bending induced stresses of the belt as it passes through the pulleys. It is the area where it will rest the belt when passing the pulleys.

\ circ

A crenellated area on the side of cutting, creating straight highlights where the steel is located fast and a throat between projections that has a geometry rounded. These highlights are cantilevered as they pass through the pulleys

B.

Zone fast steel, transition between flexible steel and segments of diamond This part is a small thickness of fast steel where the segments will be welded.

C.

Cutting segments. These elements of Cut are widely known and consist of small particles of sintered diamond agglutinated within a league.

If the metal part is made in a only material the description of the figure would be the same, but without make distinction in areas that have been referred to as A and B.

In the same figure 1 you can also see how the Tape pitch is variable to reduce vibrations during the material cutting

Figure 2 shows a side view of the patent object, where the three are differentiated again indicated parts of the tape, according to preferred embodiment (in case of being of a single metal the zones A and B would be matching). You can clearly see how the segments of diamonds are wider than the rest of the ribbon to allow a indefinite penetration

Preferred Embodiment

In a preferred embodiment, the tape would be formed by three parts: a flexible steel spine (A) resistant to fatigue with a crenellated shape of flat projections where weld sections of fast steel (B) that will transition between the flexible steel and diamond segments (C), as represented in figure 1.

This way you would have a bimetallic tape 1.3 x 41 mm or larger to achieve stiffness enough, making the spine in steel D6a and with a small area M42 quick steel. The cutting area of the metal tape is prepared as shown in the figures, it has some highlights 12 mm planes. to serve as a seat for segments of 10 mm in length and with alternating variable pitch of 33, 25 and 28 mm. The throat between projections will have a depth of approximately 6 mm and with a rounding of 5 mm. Finally, the segments will be of 2.5 mm thick to allow the relief of the tape during the cut and get an indefinite depth of cut.

Claims (4)

1. Endless band saw with diamond segments characterized by the welding of diamond segments on a flexible band saw for cutting abrasive materials. 2. Endless band saw with diamond segments, according to claim 1, characterized by having a crenellated shape in the cutting area, on which projections are welded by a quick steel and / or diamond segments. 3. Endless band saw with diamond segments, according to claims 1 and 2, characterized in that in the passage of the belt through the pulleys the cutting segments and the projections on which they are welded are cantilevered, allowing the belt to adapt from the curved area (as it passes through the pulleys) to the straight area of the diamond segments. 4. Endless band saw with segments of diamond, as described in the body of this memory and claims consisting of 6 pages written on one side and two figures.